-----> Node.js app detected

-----> Creating runtime environment

       NPM_CONFIG_LOGLEVEL=error
       NODE_ENV=production
       NODE_MODULES_CACHE=true
       NODE_VERBOSE=false

-----> Installing binaries
       engines.node (package.json):  unspecified
       engines.npm (package.json):   unspecified (use default)
       engines.yarn (package.json):  unspecified (use default)

       Resolving node version 12.x...
       Downloading and installing node 12.16.3...
       Using default npm version: 6.14.4
       Resolving yarn version 1.x...
       Downloading and installing yarn (1.22.4)...
       Installed yarn 1.22.4

-----> Installing dependencies
       Installing node modules (yarn.lock)
       yarn install v1.22.4
       [1/4] Resolving packages...
       [2/4] Fetching packages...
       info fsevents@2.1.3: The platform "linux" is incompatible with this module.
       info "fsevents@2.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
       [3/4] Linking dependencies...
       [4/4] Building fresh packages...
       error /tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas: Command failed.
       Exit code: 1
       Command: node-pre-gyp install --fallback-to-build
       Arguments:
       Directory: /tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas
       Output:
       Package pangocairo was not found in the pkg-config search path.
       Perhaps you should add the directory containing `pangocairo.pc'
       to the PKG_CONFIG_PATH environment variable
       No package 'pangocairo' found
       gyp: Call to 'pkg-config pangocairo --libs' returned exit status 1 while in binding.gyp. while trying to load binding.gyp
       gyp ERR! configure error
       gyp ERR! stack Error: `gyp` failed with exit code: 1
       gyp ERR! stack     at ChildProcess.onCpExit (/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:351:16)
       gyp ERR! stack     at ChildProcess.emit (events.js:310:20)
       gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)
       gyp ERR! System Linux 4.4.0-1062-aws
       gyp ERR! command "/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/bin/node" "/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "configure" "--fallback-to-build" "--module=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release/canvas.node" "--module_name=canvas" "--module_path=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release" "--napi_version=5" "--node_abi_napi=napi" "--napi_build_version=0" "--node_napi_label=node-v72"
       gyp ERR! cwd /tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas
       gyp ERR! node -v v12.16.3
       gyp ERR! node-gyp -v v5.1.0
       gyp ERR! not ok
       node-pre-gyp ERR! build error
       node-pre-gyp ERR! stack Error: Failed to execute '/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/bin/node /tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js configure --fallback-to-build --module=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release/canvas.node --module_name=canvas --module_path=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release --napi_version=5 --node_abi_napi=napi --napi_build_version=0 --node_napi_label=node-v72' (1)
       node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/node-pre-gyp/lib/util/compile.js:83:29)
       node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:310:20)
       node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:1021:16)
       node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
       node-pre-gyp ERR! System Linux 4.4.0-1062-aws
       node-pre-gyp ERR! command "/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/bin/node" "/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
       node-pre-gyp ERR! cwd /tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas
       node-pre-gyp ERR! node -v v12.16.3
       node-pre-gyp ERR! node-pre-gyp -v v0.11.0
       node-pre-gyp ERR! not ok
       Failed to execute '/tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/bin/node /tmp/build_fe435b2c45024be9818941b912d58fdc/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js configure --fallback-to-build --module=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release/canvas.node --module_name=canvas --module_path=/tmp/build_fe435b2c45024be9818941b912d58fdc/node_modules/canvas/build/Release --napi_version=5 --node_abi_napi=napi --napi_build_version=0 --node_napi_label=node-v72' (1)
       info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
-----> Build failed

       We're sorry this build is failing! You can troubleshoot common issues here:
       https://devcenter.heroku.com/articles/troubleshooting-node-deploys

       Some possible problems:

       - Node version not specified in package.json
         https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version

       Love,
       Heroku

 !     Push rejected, failed to compile Node.js app.
 !     Push failed